{"id":821,"date":"2019-04-12T18:09:53","date_gmt":"2019-04-12T10:09:53","guid":{"rendered":"http:\/\/www.fyndpro.com\/?p=821"},"modified":"2026-08-27T16:15:52","modified_gmt":"2026-08-27T08:15:52","slug":"count_3_mth_later_date","status":"publish","type":"post","link":"https:\/\/www.fyndpro.com\/en\/count_3_mth_later_date\/","title":{"rendered":"Calculate the date of conversion to permanent staff three months after the hire date"},"content":{"rendered":"<p>&nbsp;<\/p>\n<blockquote><p>If you have hire dates for 1,000 employees and need to calculate the date they convert to permanent staff three months after hire, how should you calculate it?<\/p><\/blockquote>\n<p>Method 1: +90 days?<br \/>\nMethod 2: Month + 3?<\/p>\n\t\t\t\t\t\t<style>\r\n\t\t\t\t<style>\r\n#wpsm_accordion_820 .wpsm_panel-heading{\r\n\tpadding:0px !important;\r\n}\r\n#wpsm_accordion_820 .wpsm_panel-title {\r\n\tmargin:0px !important; \r\n\ttext-transform:none !important;\r\n\tline-height: 1 !important;\r\n}\r\n#wpsm_accordion_820 .wpsm_panel-title a{\r\n\ttext-decoration:none;\r\n\toverflow:hidden;\r\n\tdisplay:block;\r\n\tpadding:0px;\r\n\tfont-size: 18px !important;\r\n\tfont-family: Open Sans !important;\r\n\tcolor:#000000 !important;\r\n\tborder-bottom:0px !important;\r\n}\r\n\r\n#wpsm_accordion_820 .wpsm_panel-title a:focus {\r\noutline: 0px !important;\r\n}\r\n\r\n#wpsm_accordion_820 .wpsm_panel-title a:hover, #wpsm_accordion_820 .wpsm_panel-title a:focus {\r\n\tcolor:#000000 !important;\r\n}\r\n#wpsm_accordion_820 .acc-a{\r\n\tcolor: #000000 !important;\r\n\tbackground-color:#e8e8e8 !important;\r\n\tborder-color: #ddd;\r\n}\r\n#wpsm_accordion_820 .wpsm_panel-default > .wpsm_panel-heading{\r\n\tcolor: #000000 !important;\r\n\tbackground-color: #e8e8e8 !important;\r\n\tborder-color: #e8e8e8 !important;\r\n\tborder-top-left-radius: 0px;\r\n\tborder-top-right-radius: 0px;\r\n}\r\n#wpsm_accordion_820 .wpsm_panel-default {\r\n\t\tborder:1px solid transparent !important;\r\n\t}\r\n#wpsm_accordion_820 {\r\n\tmargin-bottom: 20px;\r\n\toverflow: hidden;\r\n\tfloat: none;\r\n\twidth: 100%;\r\n\tdisplay: block;\r\n}\r\n#wpsm_accordion_820 .ac_title_class{\r\n\tdisplay: block;\r\n\tpadding-top: 12px;\r\n\tpadding-bottom: 12px;\r\n\tpadding-left: 15px;\r\n\tpadding-right: 15px;\r\n}\r\n#wpsm_accordion_820  .wpsm_panel {\r\n\toverflow:hidden;\r\n\t-webkit-box-shadow: 0 0px 0px rgba(0, 0, 0, .05);\r\n\tbox-shadow: 0 0px 0px rgba(0, 0, 0, .05);\r\n\t\tborder-radius: 4px;\r\n\t}\r\n#wpsm_accordion_820  .wpsm_panel + .wpsm_panel {\r\n\t\tmargin-top: 5px;\r\n\t}\r\n#wpsm_accordion_820  .wpsm_panel-body{\r\n\tbackground-color:#ffffff !important;\r\n\tcolor:#000000 !important;\r\n\tborder-top-color: #e8e8e8 !important;\r\n\tfont-size:16px !important;\r\n\tfont-family: Open Sans !important;\r\n\toverflow: hidden;\r\n\t\tborder: 2px solid #e8e8e8 !important;\r\n\t}\r\n\r\n#wpsm_accordion_820 .ac_open_cl_icon{\r\n\tbackground-color:#e8e8e8 !important;\r\n\tcolor: #000000 !important;\r\n\tfloat:right !important;\r\n\tpadding-top: 12px !important;\r\n\tpadding-bottom: 12px !important;\r\n\tline-height: 1.0 !important;\r\n\tpadding-left: 15px !important;\r\n\tpadding-right: 15px !important;\r\n\tdisplay: inline-block !important;\r\n}\r\n\r\n\t\t\t\r\n\t\t\t<\/style>\t\r\n\t\t\t<\/style>\r\n\t\t\t<div class=\"wpsm_panel-group\" id=\"wpsm_accordion_820\" >\r\n\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t<!-- Inner panel Start -->\r\n\t\t\t\t\t<div class=\"wpsm_panel wpsm_panel-default\">\r\n\t\t\t\t\t\t<div class=\"wpsm_panel-heading\" role=\"tab\" >\r\n\t\t\t\t\t\t  <h4 class=\"wpsm_panel-title\">\r\n\t\t\t\t\t\t\t<a  class=\"\"  data-toggle=\"collapse\" data-parent=\"#wpsm_accordion_820 \" href=\"javascript:void(0)\" data-target=\"#ac_820_collapse1\" onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"ac_open_cl_icon fa fa-plus\"><\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t \r\n\t\t\t\t\t\t\t\t<span class=\"ac_title_class\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span style=\"margin-right:6px;\" class=\"fa fa-laptop\"><\/span>\r\n\t\t\t\t\t\t\t\t\tWrong method 1: Hire date + 90 days?\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t  <\/h4>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div id=\"ac_820_collapse1\" class=\"wpsm_panel-collapse collapse\"  >\r\n\t\t\t\t\t\t  <div class=\"wpsm_panel-body\">\r\n\t\t\t\t\t\t\t\u274c Because months have different numbers of days, adding 90 days can shift the conversion date by a few days.\r\nFor example, if the hire date is 2\/20\/2019, three months later should be 5\/20\/2019, but adding 90 days yields 5\/21\/2019.\t\t\t\t\t\t  <\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<!-- Inner panel End -->\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t<!-- Inner panel Start -->\r\n\t\t\t\t\t<div class=\"wpsm_panel wpsm_panel-default\">\r\n\t\t\t\t\t\t<div class=\"wpsm_panel-heading\" role=\"tab\" >\r\n\t\t\t\t\t\t  <h4 class=\"wpsm_panel-title\">\r\n\t\t\t\t\t\t\t<a  class=\"collapsed\"  data-toggle=\"collapse\" data-parent=\"#wpsm_accordion_820 \" href=\"javascript:void(0)\" data-target=\"#ac_820_collapse2\" onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"ac_open_cl_icon fa fa-plus\"><\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t \r\n\t\t\t\t\t\t\t\t<span class=\"ac_title_class\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span style=\"margin-right:6px;\" class=\"fa fa-laptop\"><\/span>\r\n\t\t\t\t\t\t\t\t\tWrong method 2: Extract the hire date's month and add 3?\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t  <\/h4>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div id=\"ac_820_collapse2\" class=\"wpsm_panel-collapse collapse\"  >\r\n\t\t\t\t\t\t  <div class=\"wpsm_panel-body\">\r\n\t\t\t\t\t\t\t\u274c If the hire date falls in October, November, or December, adding 3 will exceed 12 and cause an error.\t\t\t\t\t\t  <\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<!-- Inner panel End -->\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t<!-- Inner panel Start -->\r\n\t\t\t\t\t<div class=\"wpsm_panel wpsm_panel-default\">\r\n\t\t\t\t\t\t<div class=\"wpsm_panel-heading\" role=\"tab\" >\r\n\t\t\t\t\t\t  <h4 class=\"wpsm_panel-title\">\r\n\t\t\t\t\t\t\t<a  class=\"collapsed\"  data-toggle=\"collapse\" data-parent=\"#wpsm_accordion_820 \" href=\"javascript:void(0)\" data-target=\"#ac_820_collapse3\" onclick=\"do_resize()\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"ac_open_cl_icon fa fa-plus\"><\/span>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t \r\n\t\t\t\t\t\t\t\t<span class=\"ac_title_class\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span style=\"margin-right:6px;\" class=\"fa fa-laptop\"><\/span>\r\n\t\t\t\t\t\t\t\t\tCorrect method\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t  <\/h4>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div id=\"ac_820_collapse3\" class=\"wpsm_panel-collapse collapse\"  >\r\n\t\t\t\t\t\t  <div class=\"wpsm_panel-body\">\r\n\t\t\t\t\t\t\tUse the EDATE function\r\n<pre>=EDATE(hire_date,3)<\/pre>\r\nEDATE solves both problems; 3 means three months ahead, so to find three months earlier use =EDATE(date,-3).\r\n\r\n&nbsp;\r\n\r\n<a href=\"https:\/\/support.office.com\/zh-tw\/article\/edate-%E5%87%BD%E6%95%B8-3c920eb2-6e66-44e7-a1f5-753ae47ee4f5\" target=\"_blank\" rel=\"noopener\">Microsoft's official documentation<\/a>\t\t\t\t\t\t  <\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<!-- Inner panel End -->\r\n\t\t\t\t\t\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\r\n<script type=\"text\/javascript\">\r\n\t\r\n\t\tfunction do_resize(){\r\n\r\n\t\t\tvar width=jQuery( '.wpsm_panel .wpsm_panel-body iframe' ).width();\r\n\t\t\tvar height=jQuery( '.wpsm_panel .wpsm_panel-body iframe' ).height();\r\n\r\n\t\t\tvar toggleSize = true;\r\n\t\t\tjQuery('iframe').animate({\r\n\t\t\t    width: toggleSize ? width : 640,\r\n\t\t\t    height: toggleSize ? height : 360\r\n\t\t\t  }, 250);\r\n\r\n\t\t\t  toggleSize = !toggleSize;\r\n\t\t}\r\n\t\t\r\n<\/script>","protected":false},"excerpt":{"rendered":"<p>&nbsp; \u5982\u679c\u73fe\u5728\u4f60\u67091,000\u4f4d\u54e1\u5de5\u7684\u5165\u8077\u65e5\uff0c\u4f60\u8981\u8a08\u7b97\u4ed6\u5011\u5165\u8077\u65e5\u8a083\u500b\u6708\u5f8c\u8f49\u9577\u5de5\u7684\u65e5\u5b50\uff0c\u61c9\u8a72\u7528\u4ec0\u9ebc\u65b9\u6cd5\u8a08 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3790,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[8,20],"tags":[99,293,286],"class_list":["post-821","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-excel","category-onlinesupport","tag-edate","tag-excel","tag-date-calculation"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.fyndpro.com\/wp-content\/uploads\/2026\/08\/new_covers_batch_02_421_excel.jpg?fit=816%2C1088&ssl=1","_links":{"self":[{"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/comments?post=821"}],"version-history":[{"count":1,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":822,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/posts\/821\/revisions\/822"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/media\/3790"}],"wp:attachment":[{"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyndpro.com\/en\/wp-json\/wp\/v2\/tags?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}